Revolving grapple



May 14, 1929. D. w. COE

REVOLVING GRAPPLE Fil 14, 1927 2 Shee.ts-Sheet 1N VENTOR DANIELW. coE

- ATTORNEYS D. W. COE

May 14, 1929.

REVOLVI NG GRAPPLE Filed Feb. 14,. 1927 2 Sheets-Sheet 2 INVEN TOR DAN]ELJM CO E BY m z AI TOR/N171;

patented May 14, 1929.

STATES DANIELW. GOE, F MONTREAL, QUEBEC, CANADA.

REVOLVING GBAPPLE.

application filed February 14, 1927. Serial No. 168,155.

This invention relates to improvements in grapples and more particularlyto a type of revolving grapple adapted for use in loading pulp wood froma wet storage or concentrating basin on to vessels or carriers.

The principal object of the invention is to provide a device which willfacilitate the loading of the vessels by handling the pulp wood in bulk,that is in quantities of approio imately a cord, more or less, insteadof handling the wood by individual pieces.

Another object is to provide a grap iile which will, in lifting the pulpwood, tend to arrange same so that it may be conveniently stacked awayin the vessels.

i iccording to my invention, it provide a grapple of cradle formsuspended from an equalizer or walking beam, the ends of which areadjustably suspended and controlled by a hoisting unit. The grapple isrevolved by the movement of the walking beam about its central pivot.The structure is adapted to be lowered into a wet basin with its openend facing downwardly. The weight of the grap; plc is sufficient todisplace a concentrated body of wood floating in the basin and to sinkbelow same. The grapple is then turned with itsopen end facing upward,so that when the grapple is hoisted, it will trap a quantity of 30 wood,which is lifted in bulk and transferred to the vessel.

lin the drawings which illustrate one form of my invention;

Figure 1 is a side elevation of my improved revolving grapple.

Figure 2 is an end view of the device shown in Figure 1, with thegrapple in the lowering position.

Figure 3 is an end elevation of the demos shown in Figure l, with thegrapple in the hoisting position, with the pulp wood held therein.

Figure t is a plan view of the grapple.

Figure 5 is an end view of same.

Referring more particularly to the drawings, 11 designates the grappleof cradle or trough form, which consists of two end plates 12 and 13,and a plurality of intermedlate bent bars l l, spaced from one anotherand mounted on belts or round bars 15 which pass through said bars M andthe end plates 12 and i8. Secured to or formed integral with the endplates are the trunnions 16, to which are secured the grapple turning orrevolving pulleys 17. These pulleys may be cast integrai with the endplates. The trunnlons are rotatably mounted in suitable bearings 18,formed in the grapple supporting frame 19, which extends from end to endof the grapple. Projecting upwardly from the portion of the frame 19, isthe walking or equalizing beam pivot bearing plates 21 The equali/i 111gbeam 2-2 is pivotally mounted between the plates 21 and on the pin 23passing therethrough. Pivotally secured to pins 24, at each end oi thebeam 22, are the links 25, and between each pair of links are mountedthe hoisting pulleys 26. The hoisting ropes 27 and 28 pass around theunderside of the pulleys and over the pulleys 29 and 30, respec tively,to a hoisting unit of any of the wellknown types. Projecting outwardlyfrom one side of the frame and directly below one end of the equalizerbeam is the pin or projection 81, and rotatably mounted on said pin arethe pulleys 32 and 33. Projecting outwardly from the other side of theframe and directly below the other end of the equalizer beam, is the pin34, and rotatably mounted on the pin are the pulleys 35 and 36. Passingthrough the ends of the frame are the pulley supporting pins 37 and 38.ltotatably mounted on the pins 37, are the pulleys 39 and 40, one oneach side of the frame, and rotatably mounted on the pin 38 are thepulleys ll and 42. Four ropes A, B, C, and D are used for revolving thegrapple. Hope A is anchored at one en d 4:3 to the equalizer beam andpass ing under pulley 32 and over pulley 39, is anchored in any suitablemanner to the pulley 1'7. Rope B anchored at one end to the equalizerbeam and passes under pulley 33, over pulley ll, and is anchored to theperiphery of pulley ll. ltope C is anchored to the other end of theequaliser beam and passes under pulley 35, over pulley 4L2, and is anchored to pulley 17.

Hope I) is anchored to the same end of the beam as rope G and passesunder pulley 36, over pulley l0, and is anchored to the pulley 17.Suitable rope guards may be placed around or in proximity to the edgesof all pulleys. The bars 14 are so positioned that their edges arebrought in contact with the load.

In operation the grapple is lowered with its open end facing downwardlyinto a wet basin in which pulp wood logs have been stored inconcentrated form. The edges of the grapple displace the logs and theweight of the grapple is such that it sinks below the lowermost row oflogs. The grapple is then turned under the water and is hoisted,trapping a number of logs within the grapple, the sides of which arecurved to cause the logs to roll toward the bucket and arrangethemselves with their longitudinal axes parallel to each other and withthe sides of the grapple. It will be seen that when the logs aredischarged from the grapple they are in a semi-arranged condition, whichfacilitates the piling of the logs by manual labour. The turning of thegrapple is accomplished by moving the equalizer beam from the positionshown in full lines, to that shown in dotted lines, or viee-versa asshown in Figure 1, and said beam is moved by the movement of thehoisting ropes. Ropes C and D pull the grapple in one direction, andropes A and B pull it in the other direction, when turning or rightingthe grapple.

The device is very simple in operation and provides a simple and easilyoperated device which will facilitate the loading and stacking of pulpwood logs.

Having thus described my invention, what I claim is 1. In a grapple, aload carrying element of substantially U-form with closed ends, andmeans formed in the side for drainage, trunnions formed in the ends ofsaid element, pulleys mounted at the ends of the said element andadapted to rotate therewith, a frame having bearings for rotatablysupporting the trunnions, bearing projections extending upwardly fromthe frame, an equalizer beam rotatably mounted on the bearingprojections, and ropes secured to the beam and passing over suitableguide pulleys and secured to the first mentioned pulleys so thatmovement of the beam rotates the load carrying element.

2; In a device of the character described, the combination of a frame, abucket rotatably carried thereby, a walking beam intermediately pivotedto said frame, means connected to the opposite ends of said beam andoperable to swing the beam in either direction about its pivotal axis,and connections between each end of the beam and the bucket arranged torotate the bucket when swinging movement is imparted to the beam.

3. A device of the character described, comprising a frame, a buckethaving terminal trunnions rotatably mounted in said frame, a walkingbeam intermediately pivoted to said frame, pulleys carried by saidtrunnions and cable connections between said pulleys and the ends of thebeam designed to rotate the bucket when swinging nmvement is imparted tothe beam.

4:. In a device of the character described, the combination of a frame,a bucket rotatably mounted therein, a w: lking beam intermediatelypivoted to the frame, cable connections between said bucket and walkingbeams arranged to rotate the bucket when swinging movement is impartedto the beam, pulleys carried by opposite ends of said beam and beamoperating cables trained around said pulleys and operable to impartswinging movement to the beam.

5. In a device of the character described the combination of a frame, abucket rotatably mounted in said frame, pulleys tixed to the bucket torotate therewith, a walking beam intermediately pivoted to the frame. apair of cables connected between each end of the walking beam and saidpulleys, said cables being trained around suitable guide sheaves carriedby the frame and thereby arranged to impart turning movement to thebucket when the beam is swung about its pivotal axis and means forimparting swinging movement to said beam.

In witness whereof, I have hereunto set my hand.

DANIEL W. CUE.

